Power Converter

Convert between watts and other practical power units.

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Related Conversions
10 mW to GW 20 mW to GW 22.5 mW to GW 27.5 mW to GW 40 mW to GW 60 mW to GW 75 mW to GW 150 mW to GW 200 mW to GW 250 mW to GW 750 mW to GW 1,000 mW to GW
Reverse Conversions
5 GW to mW 10 GW to mW 20 GW to mW 25 GW to mW 27.5 GW to mW 30 GW to mW 75 GW to mW 100 GW to mW 150 GW to mW 250 GW to mW 500 GW to mW 750 GW to mW
More Power Conversions
1 BTU/h to W 1 MW to kW 1 kW to hp 150 hp to kW 1,000 hp to kW 1,000 kW to hp 1,800 W to BTU/h 2,000 W to BTU/h 4,000 hp to kW 12,000 BTU/h to kW 36,000 BTU/h to kW 100,000 W to BTU/h

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Watts to Horsepower Horsepower to Watts Watts to Kilowatts Kilowatts to Watts Kilowatts to Horsepower Horsepower to Kilowatts BTU Per Hour to Watts Watts to BTU Per Hour BTU Per Hour to Kilowatts Kilowatts to BTU Per Hour

Common Benchmarks

Phone fast charge 30 W
E-bike motor 500 W
Car engine 100 hp
LED bulb 10 W
Desktop PC 300 W
Refrigerator average 150 W

Formula

GW = MW × 0.001

Example

Example: convert 25 megawatts to gigawatts.

25 MW = 0.025 GW

Conversion table

megawatts (MW) gigawatts (GW)
1 MW 0.001 GW
2 MW 0.002 GW
5 MW 0.005 GW
10 MW 0.01 GW
20 MW 0.02 GW
50 MW 0.05 GW
100 MW 0.1 GW

Explanation

These are both units.

How to convert megawatts to gigawatts

  1. Start with the value in megawatts (MW).
  2. Multiply it by 0.001.
  3. The result is the measurement in gigawatts (GW).

Example: 25 MW → 0.025 GW

Frequently Asked Questions

How much is 25 megawatts in gigawatts?

25 megawatts equals 0.025 gigawatts.

How many gigawatts is 1 megawatt?

1 megawatt equals 0.001 gigawatts.

How many megawatts is 1 gigawatt?

1 gigawatt equals 1000 megawatts.

What is the difference between megawatts and gigawatts?

Both measure power, but they are commonly used in different contexts. The watt (W) is the SI unit and is widely used in electrical/device specs, while horsepower (hp) is a traditional unit often used to describe engines and machinery.

Where are megawatts and gigawatts used?

Watts are common in electrical power/consumption (devices, appliances, lighting). Horsepower is commonly used for mechanical power (engines, pumps, compressors, machinery).

Why does 1 megawatt equal 0.001 gigawatts?

Because power units are defined with a fixed relationship, which determines the conversion factor.